I Transmigrated Into the Game as the Luckiest Extra

As expected, I can't fully control it yet. My proficiency is far too low.

No matter how many times I tried, the sensation was slippery, inconsistent. It was like attempting to scoop up sand with bare hands each grain slipping through the cracks in my fingers, mocking me as if the universe itself refused to bend to my will.

Space. The very fabric of reality. A power that should feel untouchable, divine, yet here I was, fumbling, trying to knead it like clay with clumsy, trembling hands.

Is this my limit? Kael Vi-rel wondered, narrowing his eyes as the distorted air shimmered faintly around his palm. His attempts produced nothing more than flickers, ripples in the air that faded as quickly as they appeared. The range was laughably short, the effect unstable, barely enough to distort a few inches.

The dungeon's dim lighting cast jagged shadows on the walls, and the stale air felt heavy on his lungs. Even the silence of the place seemed to weigh him down, amplifying every failure with cruel clarity.

No. He clenched his fist tightly, veins straining against his skin. This isn't my limit. Not yet.

"Well, in that case," he muttered under his breath, his voice steady despite the pounding in his head, "I'll just continue. If I can't master it now, I'll hammer it into myself with repetition. Proficiency will rise if I keep using the skill nonstop."

With determination burning in his chest, Kael resumed his training. Hours seemed to blur into moments as he extended, folded, twisted, and compressed the unseen fabric of space. Each attempt ended in collapse, yet he refused to stop. Sweat dripped down his temple, stinging his eyes. His breathing grew shallow, harsh and uneven, but his mind refused to let go.

The dungeon's stone floor chilled his knees. Every movement of his hand was deliberate, every flicker of warped air recorded in his memory. To an outsider, it might have seemed like he was grasping at nothing, but to Kael, it was everything—a battle of will against the intangible.

Then the familiar chime echoed in his ears.

---

Ding!

Your learning and Proficiency of [Space Control] has increased.

Ding!

Your learning and Proficiency of [Space Control] has increased.

Ding!

Your learning and Proficiency of [Space Control] has increased.

Ding!

Your luck has played its part. Your [Mental Strength] has increased by 1.

Ding!

Your learning and Proficiency of [Space Control] has increased.

Ding!

Your luck has played its part. [Space Control {F/S+}] has been upgraded to [Space Control {D/S+}].

Ding!

Your [Mental Strength] has increased by 1.

---

"Hahaha!" Kael burst out laughing, his shoulders shaking as the notifications filled his vision. "My luck is absurd! It actually jumped from F to D in an instant!"

The laughter echoed against the dungeon walls, manic and unrestrained. His voice bounced back to him, warped and eerie, as though mocking him with its own distorted echo.

Exhaustion finally caught him. He collapsed backward, sprawled on the ground as though he had just wrestled with a giant beast. His chest rose and fell rapidly. Every nerve felt as if it were tingling, overcharged, his mind throbbing as if he had stuffed too much into it at once.

"Phew… I thought I was going to pass out from sheer overload."

It wasn't an exaggeration. Learning to grasp space wasn't like swinging a sword or casting a fireball. It was intangible, taxing his mind rather than his body, pulling at the very limits of his consciousness. Every second felt like pushing against an invisible wall with his bare brain.

Still, there was a reason he had endured it nonstop, ignoring the strain that screamed at him to stop. He had been planning something, a test that could only succeed with a higher level of control.

"Ahem," Kael cleared his throat, forcing his exhausted body to sit up. His arms trembled, his legs felt like lead, but his eyes glimmered with excitement. "I should move on to the next phase."

He extended his hand, palm open. "Let me select some monsters."

---

Ding!

Five goblins have been summoned.

---

Five scrawny figures materialized in the distance, their yellow-green skin glistening under the dungeon's artificial lighting. Their beady eyes darted wildly, rolling with hunger and madness, and they snarled, barking guttural cries that echoed through the stone corridors. In their crooked hands they gripped crude weapons splintered wooden clubs, jagged daggers coated in grime and rust, and one carried a chipped spear that rattled as he shook it.

The stench hit Kael a moment later, foul and rancid, like rotten meat left festering under the midday sun. It clung to his throat, a bitter rot that made him gag. Their hunched forms twitched with violent energy, bones sharp under thin flesh, every tendon straining, eager to tear into anything living.

"Hehe… then let's begin." Kael smirked, though his hand trembled slightly as he stretched his will outward.

Space warped. The air thickened, vibrating unnaturally, the walls of the dungeon groaning as if reality itself resisted his command. The goblins froze mid-snarl, their animal instincts screaming that something unseen hunted them. Their screeches rose in pitch, feral cries breaking into confusion as invisible barriers snapped into place.

The first goblin jerked violently, its body twisting backward as though a giant's unseen hand had gripped its spine. Its shrieks turned to wet gurgles before its chest collapsed inward with a crunch, spraying blood that vanished into the distorted air.

The second goblin swung its club wildly, striking at nothing, eyes bulging as the space around it bent. Its weapon splintered as its arm was folded at a grotesque angle, bone tearing through skin. A sickening crack rang out, followed by a high-pitched wail cut short as its skull compressed like rotten fruit.

Kael clenched his jaw, forcing more control into the distortion. The dungeon filled with the hideous symphony of bones grinding and tendons snapping. Air cracked and split, jagged like broken glass. The sound was wrong, unnatural, as if the dungeon itself were fracturing.

The third and fourth goblins tried to flee, scrambling back with frantic screeches, but distance betrayed them. The more they struggled, the closer they were pulled into the warped space, legs snapping under impossible angles. One was sliced into ribbons as space folded sharply, chunks of flesh and spurts of blood suspended for a heartbeat before collapsing onto the stone floor with a wet slap.

The last one a spear-wielding runt stared wide-eyed, frozen in place, its trembling body drenched in sweat. It tried to thrust its weapon forward, shrieking like a cornered animal. But the spear warped, bending like molten metal before snapping into fragments. Its body followed soon after, crushed from all sides. The creature's final cry turned into a strangled hiss before its chest exploded, blood misting the warped air.

One by one, their bodies were torn apart, grotesque remnants of flesh and bone smeared across twisted space before collapsing into silence. The dungeon stilled, the echoes fading into a heavy quiet.

Kael's breath came uneven, his smirk faltering for a second as the strain set into his bones. His hand lowered, trembling harder than before.

"…Not bad."

The silence was broken only by the dripping of blood, pooling across the distorted stone.

Kael exhaled slowly, but then he froze. His sharp eyes caught something unusual.

"Hm? What is this…?" He stepped closer, squinting at the faint rippling distortion lingering in the area where the goblins had died. The space wasn't returning to normal it remained warped, stretched unnaturally as though scarred by his ability.

He frowned deeply. "Let me use my Vismora glasses to check."

Sliding the enchanted glasses over his eyes, the world shifted. What had seemed like empty air now appeared as overlapping folds, layers of reality stacked on top of one another like pages crumpled in a book.

"Oh…" Kael murmured, awe creeping into his tone. "So that's what it is."

The data displayed across the glasses explained it clearly. The dimensional chamber, a space that theoretically held infinite capacity, was expanding and distorting in reaction to his attack. By using such a wide-range compression strike, he had inadvertently interacted with its underlying mechanics.

In simpler terms he had caused the dungeon's space to behave abnormally.

"This… is interesting," Kael whispered, lips curling into a sly grin. "But what if I tried to store it?"

---

Warning.

The AI drone floating beside him hummed, its metallic voice crisp and unwavering. "Attempting to store or contain warped dimensional space is generally impossible. The process exceeds your current mental stability."

Kael raised a brow. "Generally impossible, huh?" He tilted his head, smirking. "That's not the same as absolutely impossible."

The drone's single eye flickered red. "Failure rate exceeds ninety-nine percent. Proceeding is not advised."

Kael chuckled. "If I listened to advice, I wouldn't be here. Ninety-nine percent failure means one percent success. That's enough for me."

He scratched his chin, deep in thought. Even if this was a bug, an error, or simply an unintended interaction, it was a potential loophole.